5VGP:
reference: Structure of the Fc fragment of the NIST reference antibody RM8671., Gallagher DT, Galvin CV, Karageorgos I, Acta Crystallogr F Struct Biol Commun. 2018 Sep 1;74(Pt 9):524-529. doi:, 10.1107/S2053230X18009834. Epub 2018 Aug 29. PMID: 30198883

This OCA Structure page
uses Jmol, developed by the Jmol Development Team (documentation).